diff --git a/Package_Diagram.md b/Package_Diagram.md
index b59c1bf..bb6ace5 100644
--- a/Package_Diagram.md
+++ b/Package_Diagram.md
@@ -18,9 +18,11 @@ package Data <<Database>> #ddd {
   
 }
 
-package Tests <<Node>> #aaa
+package Tests <<Node>> #aaa {
+}
 
-package App <<Cloud>> #fff
+package App <<Cloud>> #fff {
+}
 
 package Model <<Frame>> #bada55 {